Home / 192,585.74-289,159.02-136,722.47

Finding the Fourth Proportional to 192,585.74, 289,159.02 and 136,722.47

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Solution

The fourth proportional to 192,585.74, 289,159.02 and 136,722.47 is: 205,282.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,585.74 : 289,159.02 = 136,722.47 : x
  2. Step 2: Convert to fraction form
    192,585.74/289,159.02 = 136,722.47/x
  3. Step 3: Cross multiply
    192,585.74x = 289,159.02 × 136,722.47
  4. Step 4: Simplify right side
    192,585.74x = 39,534,535,437.18
  5. Step 5: Solve for x
    x = 39,534,535,437.18/192,585.74
  6. Step 6: Final answer
    x = 205,282.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.